ELC-09D222F Equivalent & Substitute Parts

Part Overview

The ELC-09D222F is a 2.2 mH unshielded wirewound inductor manufactured by Panasonic Electronic Components, rated for 170 mA with a DC resistance of 4.4 Ohm. This through-hole radial component operates at a test frequency of 10 kHz and is designed for applications requiring fixed inductance in compact form factors. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications.

Substiute Parts

ELC-09D222F

Panasonic Electronic ComponentsIn Stock: 627ELC-09D222F Datasheet

Current PartRFQ

744731222

Würth ElektronikIn Stock: 1912744731222 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELC-09D222F is determined by the following core parameters:

• Inductance value: 2.2 mH (±10% tolerance acceptable)
• Current rating: minimum 170 mA
• DC resistance: within acceptable operating range (4.4 Ohm reference)
• Mounting type: Through Hole required
• Package configuration: Radial, Vertical Cylinder
• Compliance: ROHS3 Compliant

The Würth Elektronik 744731222 meets these substitution criteria with equivalent inductance, higher current rating (200 mA), comparable DC resistance (4.6 Ohm Max), and identical mounting and package specifications. The primary difference is the addition of shielding and ferrite drum core construction, which provides enhanced electromagnetic isolation without compromising the core electrical parameters required for substitution.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 744731222 is a direct functional substitute for the obsolete ELC-09D222F. Both components are ROHS3 compliant and meet the core electrical requirements for 2.2 mH inductance applications at 170 mA operation. The 744731222 offers the advantage of active product status with current manufacturing availability, eliminating supply chain risk associated with obsolete components.

The 744731222 provides superior current handling capability (200 mA versus 170 mA) and includes shielding, which reduces electromagnetic interference in sensitive circuit environments. The slightly higher DC resistance (4.6 Ohm Max versus 4.4 Ohm) remains within acceptable operating margins for most applications. Physical dimensions are smaller, which may provide layout advantages in space-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can the 744731222 be used as a direct replacement for the ELC-09D222F?

A: Yes. Both components share identical inductance (2.2 mH), tolerance (±10%), mounting type (Through Hole), and package configuration (Radial, Vertical Cylinder). The 744731222 meets or exceeds the electrical specifications of the obsolete part.

Q: What is the impact of the shielding difference?

A: The 744731222 includes shielding, which reduces radiated electromagnetic interference. This is an enhancement that does not compromise compatibility. Unshielded applications can use the shielded substitute without functional degradation.

Q: Does the size difference affect PCB layout?

A: The 744731222 is physically smaller (0.307" Dia versus 0.374" Dia, 0.295" Height versus 0.350" Height). This may require PCB footprint verification, though both maintain radial, vertical cylinder configuration. Existing through-hole mounting patterns should accommodate the smaller component.

Q: Are there compliance or certification differences?

A: Both components are ROHS3 compliant. The 744731222 is an active product with current manufacturing support, whereas the ELC-09D222F is obsolete. The 744731222 carries REACH Unaffected status, confirming regulatory alignment.

Q: What is the current rating difference, and does it matter?

A: The 744731222 is rated for 200 mA compared to the ELC-09D222F at 170 mA. This higher rating provides additional design margin and does not create compatibility issues in applications designed for 170 mA operation.